초록 ▼

A smart actuator (10), includes a mounting base (12), a solenoid element (14), and a pressure sensor element (16). The solenoid element (14) and the pressure sensor element (16) are in electrical communication with a remote control element (17) through a wire harness (18). The remote control element

A smart actuator (10), includes a mounting base (12), a solenoid element (14), and a pressure sensor element (16). The solenoid element (14) and the pressure sensor element (16) are in electrical communication with a remote control element (17) through a wire harness (18). The remote control element (17) sends a signal to the solenoid element (14) to adjust hydraulic fluid pressure. The pressure sensor (16) reports back to the remote control element (17) the value of hydraulic fluid pressure such that a closed-loop system in formed where correct hydraulic fluid pressure is rapidly and accurately attained.

대표청구항 ▼

[ What is claimed is:] [1.]1. An apparatus having a fluid inlet and a fluid outlet for controlling hydraulic fluid pressure comprising:a mounting base;a solenoid element, attached to said mounting base and in fluid communication with a hydraulic fluid line, said solenoid element being capable of inc

[ What is claimed is:] [1.]1. An apparatus having a fluid inlet and a fluid outlet for controlling hydraulic fluid pressure comprising:a mounting base;a solenoid element, attached to said mounting base and in fluid communication with a hydraulic fluid line, said solenoid element being capable of increasing and decreasing fluid pressure within said hydraulic fluid line;a pressure sensor element attached to said mounting base and in fluid communication with said hydraulic fluid line, said pressure sensor element positioned in fluid communication with a pressure chamber, said chamber located directly at said outlet of said apparatus, said pressure sensor element being capable of monitoring said fluid pressure; anda remote control element, said remote control element, through communication with said pressure sensor element, determines the line pressure of said hydraulic fluid line, and the line pressure of said hydraulic fluid line is adjusted by said remote control element through communication with said solenoid element. [15.]15. A method of controlling pressure in a hydraulic fluid line comprising the steps of:sending a signal from a remote control system to a solenoid element, said solenoid element placed in an apparatus having an inlet and an output;adjusting the pressure of the hydraulic fluid line using said solenoid element;monitoring the pressure of the hydraulic fluid line at a position directly adjacent to said outlet;reporting the pressure of the hydraulic fluid to said remote control system; andusing the pressure of the hydraulic fluid line to adjust said signal from said remote control system to said solenoid element such that the pressure of the hydraulic fluid line can be controlled quickly and accurately.16. A method of controlling pressure in a hydraulic fluid line as described in claim 15, wherein said solenoid element comprises a pulse width modulated solenoid.17. A method of controlling pressure in a hydraulic fluid line as described in claim 15, wherein said solenoid element comprises a variable bleed solenoid.18. A method of controlling pressure in a hydraulic fluid line as described in claim 15 for use in an automotive transmission system.19. A method of controlling pressure in a hydraulic fluid line as described in claim 15 for use in an automotive braking system.